Gyratory structure.



G. W. GOMBS.

GYRATORY STRUCTURE.

APPLIOATION FILED my 5, 1908.

1,071,706. Patented s t.2,1913.

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GYRATORY STRUCTURE.

APPLICATION IILIID mu 6, 1008.

1,071,706. Patented Sept. 2, 1913.

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G. W. COMES.

GYRATORY STRUCTURE.

APPLICATION FILED MAY 5, 1908.

1,071,706. Patented Sept. 2, 1913. 5G; a 3 I m 3 Basins-sung 13.j- E E 12 INVLN TOR,

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GEORGE W. COMES, OF LEAVENVVORIH, KANSAS.

GYRATORY STRUCTURE.

Specification of Letters Patent.

Patented Sept. 2, 1913.

Application filed May 5, 1908. Serial No. 430,989.

To all LU/LOHL it may concern:

Be it known that I, Gnouen \V. Cones, citizen of the United States, residing at Leavenworth, in the county of Leavenworth and State of Kansas, have invented certain new and useful Improvements in Gyratory Structures, of which the following is a specification.

My invention relates to improvements in gyratory structures such as flour-Sifters, &c.; and the invention embraces a novel shaft or shafts for driving the structure and a weight or weights for unbalancing the structure when in motion so that it will gyrate. The weight may be rigidly secured to the shaft, but I prefer to pivot it thereto so that said weight may automatically adjust itself to the different speeds of the structure and thereby prevent the latter from bucking or leaving its true gyratory course while starting or stopping, or after its shaft has attained its critical speed of rotation.

My principal object is to overcome the serious defect which heretofore arose in structures employing weights to impart a gyratoiy motion thereto. This defect is caused by the weights pulling one side of the drive-shaft against its bearings, with the result that said side is worn flat and the interior of the bearings is worn larger than the shaft, so that the latter is free to move laterally or vibrate in the former greatly to the detriment of both. I do not overcome wear of the shaft or its bearings, but I do construct and arrange the parts so that the greater portion of the wear occurs at one side of the bearings, and as said side is constantly held in contact with the stationary section of my improved shaft by the weights, independent movement between the shaft and its bearings, and the detrimental results arising therefrom, is obviated.

In the accompanying drawings illustrating the invention:

Figure 1 represents a vertical central sec tion of a gyratory structure provided with the preferred form of my improvements. Fig. 2 is a plan view of the gyratory structure, provided with a modified form of my improvements. Fig. 3 is a side elevation of the same. Fig. 4 is an enlarged vertical section on line IVIV of Fig. 2. Fig. 5

is a detail cross section on line VV of Fig. 1.

1 designates the gyratory structure which in the present instance consists of a pair of oppositely-disposed sieve-boxes 2, united by a plurality of bridge-trees 3, provided with bearings 4. The sieve-boxes are supported by flexible rods 5 so they may freely gyrate.

(S designates a pair of verticallypositioned shafts for driving the structure, which a re arranged, preferably, midway between the sicve'boxes. llach shaft consists of a stationary section 7, fixed in bearings 4, and a tubular section 8 journalcd upon section 7 and extending, preferably, almost the entire length thereof. Section 8 is provided with a pair of boxes 9 which are journaled on section 7 and secured to section 8 by set-screws 10, so they may be removed and rebabbitted when necessary. Sections 8 rest upon ball-bearings 11 in the lowermost bearings 4, so their operation will be attended with but little friction.

12 designates two bevel gear wheels fixed to sections 8 and inter-meshing with bevel gear wheels 13 mounted upon a horizontal 5 shaft 14, provided with a centrally-disposed driver 15 fixed thereon. naled in a pair of bearings 1.6 carried by the Shaft l t is jouruppermost bridge-trees so that the bevel gear wheels, shaft 14, and driver 15 may swing or gyratc with the structure.

Bearings 16 are provided with lubricant chambers 17 and ducts 18, which latter extend through the bottom of the bearings and communicate with the uppermost bearings l, so that a portion of the lubrueant may flow therein and follow sections 7 of the shafts downward to the lowermost bearings 4, thus bearings l, boxes 9, and the ball-bearings 11, will be freely supplied with oil. The oil is prevented from overflowing from the lowermost bearings it by packing 19 and glands 20, which latter are adjustably secured to the bearings by screws 21.

A gyratory motion is imparted to the structure when the shafts are rotated, by a pair of ccntrifugally-controlled unbalancing members consisting of weights 22, piv otally secured to sections 8 by transverse pins 23 so they may swing upwardly to a horizontal position as the speed of the structure increases. Sections 8 are reinforced by longitudinal ribs 8 which receive. the pins 23 and prevent the sections from springing inward at their central portions beneath the weight exerted thereon by the unbalancing members.

Members 22 are, preferably, secured to sections 8 midway between the ends of the same so that when said members swing upward to a horizontal position they will more evenly balance the structure and prevent it from rolling, or in other words, prevent the top of the structure from describing a greater or less circle than its bottom portion. The free ends of the members 22 are provided with pockets 24 for the reception of additional weights when it is necessary to employ the latter, and they also have re cesses 25 so the members may swing clownward in line with the drive-shafts when at rest, see dotted lines on Fig. 4.

Inoperation it is obvious that the centrifugal force of the drive-shafts will cause the unbalancing members 22 to swing upward in proportion to the speed of said shafts, and as they swing upward and outward they will have a tendency to pull sections 8 therewith and, consequently, cause boxes 9 to wear on the side opposite the free ends of the unbalancing members, while the stationary sections 7 will be worn evenly around their circumference by the boxes rotating thereon. Sections 7 and 8, however, will be prevented from having independent lateral. movement because the rotating unbalancing members will always hold the snugly fitting worn side of boxes 9 in contact with the stationary sections 7 as shown in Fig. 5, whereas if ordinary shafts, journaled in stationary boxes, were employed said shafts would be worn flat on the side adjacent the free ends of the unbalancing members and the bore of the boxes would be worn much larger than the shafts, so that the same would be free to move laterally therein, greatly to the detriment of both, as it is obvious that the shafts would pound against the boxes while rotating. I

' In the modified form shown by Figs. 2 to at, inclusive, the mechanism is substantially a duplicate of that shown in Fig. 1, with the exception that the stationary sections of the driveshafts do not extend entirely through the tubular sections. Referring now in detail to said modified form, 1 des ignates the gyratory structure, which consists of a pair of oppositely-disposed sieveboxes 2 united by bridge-trees 3 and freely supported by flexible rods 5". 6 designates a pair ofdrive-shafts mounted in the structure. Each shaft consists of a stationary section 7 integral with the upper bridgetree, and a rotary sect-ion consisting of a tubular member 8 and a solid section 8 secured together by a set-screw 26. Section 8 is journaled at its lower end in a bearing 46*. secured to the lowermost bridge-tree. Section 8 is provided with a box 9 which is journaled on section 7 a and pivotally mounted upon a pair of oppositely-disposed set-screws 10 so that'it will not bind upon section 7 a should it get out of alinement with section 8*, and so that it may be removed and rebabbitted when necessary: Sections 8 like sections 8 form lubricant chambers for the reception of a supply of oil for the boxes and the stationary sections of the shafts. Sections 8 are provided near their lower ends with bevel gear wheels 12 which intermesh with a pair of bevel gear wheels 18 fixed upon a shaft 149 journaled in bearings 16 and provided with a driver 15% 22 designates a pair of unbalancing members which are duplicates of members 22 and are pivotally secured to sections 8 of the driveshafts by pins 23'. r

While I have shown two drive-shafts for each structure, one centrally-disposed shaft is sufiicient for smalll structures, hence I do not limit myself to the exact construction shown but reserve the right to make such changes as properly fall within the spirit and scope of the appended claims. I

Having thus described my invention,what I claim is I 1. In combination, a gyratory structure, a drive-shaft therefor consisting of a-stationary section fixed to and carried by the structure and arotary section journaled on the stationary section and supported by the structure, and an unbalancing member connected to the rotary section of said driveshaft.

2. In combination, a gyratory body, means for freely supporting said body, a driveshaft therefor consisting of a stationary sec tion fixed to and carried by the body and a rotary section journaled on the stationary section and resting on the body, and an unbalancing member connected to the rotary section of said drive-shaft.

3. In combination, a gyratory structure, supporting means for said structure preventing rotation thereof, a drive-shaft therefor consisting of a stationary section fixed to and carried by the structure and a rotary section journaled on the stationary section and resting on the structure, and an unbalancing member connected to the rotary section of said drive-shaft. v. 5

4. In combination, a gyratory box, a shaft supported thereby consisting of a stationary section and a rotary section journaled on the stationary section and resting on the box, a driver for the shaft also supported by said box, and an unbalancing member connected to the shaft.

5. In combination, a suspended body, a shaft arranged thereinand weighted to produce a gyratory movement, said shaft con sisting of a stationary section fixed to and carried by the suspended body and a rotary section journaled on the stationary section and supported by the suspended body, and a swinging driver for said shaft.

6. In combination, a gyratory structure consisting of one or more boxes, a verticallypositioned drive-shaft for said structure, consisting of a stationary section fixed to and carried by the structure and a rotary section journaled on the stationary section and supported by the structure, and an unbalancing weight connected to said shaft.

7. In combination, a suspended body, shafts therefor consisting of stationary sections fixed to and carried by the suspended body and rotary sections journaled 011 the stationary sections and supported by the suspended body, weights mounted on said shafts whereby they are given a tendency when in motion to travel in a gyratory path, a driver carried by the suspended body and adapted to swing or gyrate therewith, and gearing for imparting motion from said driver to the shafts.

8. In combination, a freely-supported structure, bridge-trees forming a part thereof, a drive-shaft for said structure and consisting of a stationary section fixed to and carried by said bridge-trees and a rotary section journaled on the stationary section and supported by the bridge-trees, and an unbalancing member connected to said driveshaft.

9. In combination, a gyratory structure, a plurality of drive-shafts therefor consisting of stationary sections fixed to and carried by said structure and rotary sections journaled upon the stationary sections and sup ported by the structure, a centrally-disposed driver for driving the rotary sections, and pivoted unbalancing members mounted on said rotary sections.

10. In combination, a gyratory structure, a stationary drive-shaft section fixed to and carried by the structure, a tubular drive-shaft section embracing the stationary section and supported by the structure, bearings removably secured in the tubular section and journaled upon the stationary section, and an unbalancing member mounted on said tubular section.

11. In combination, a pair of oppositelydisposed boxes, a pair of shafts spaced apart and mounted midway between said boxes for driving the same, centrifugally-controlled unbalancing members pivoted to the shafts about midway between the ends of the same,

and a driver mounted independently of said shafts but geared thereto to drive the same.

12. In combination, a suspended structure, a stationary drive-shaft section fixed to and supported by the structure, a tubular driveshaft section ournaled on the stationary section and forming a lubricant-chamber for the reception of oil for both the stationary and rotary sections, said rotary sections being supported by the structure, and an unbalancing member secured to the tubular section.

13. In COIIllJlIliltlOIl, a structure freely suspended for gyration, two pairs of bridge trees secured to the ends of said structure, a vertical shaft carried by each pair of bridgetrees, a driven horizontal shaft journaled in one of each pair of bridge-trees, a bevel gear wheel on one end of each vertical shaft, and bevel gear wheels on the ends of the horizontal shaft for driving the bevel gear wheels on the vertical shaft.

14. In combination, a structure freely suspended for gyration, two pairs of bridgetrees secured to the ends of said structure, a vertical shaft carried by each pair of bridgetrees, a driven horizontal shaft journaled in one of each pair of bridge-trees, a bevel gear wheel on one end of each vertical shaft, bevel gear wheels on the ends of the horizontal shaft for driving the bevel gear wheels on the vertical shaft, and unbalancing weights on the vertical shaft.

15. In combination, a gyratory structure, a plurality of drive-shafts therefor, each of which consists of a stationary section extending nearly through the structure and carried thereby and a rotary section journaled on the stationary section and resting on the structure, unbalancing members connected to the rotary sections of the driveshafts, and a driver geared to said rotary sections.

16. In combination, a suspended structure, a vertical stationary drive-shaft section fixed to and supported by the structure. a tubular drive-shaft section journaled on the stationary section and forming a lubricant-cham- GEORGE W. COMES. Witnesses F. G. F ISCIIER, M. Cox.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

